#!/usr/bin/env python

# coding=utf-8

from __future__ import division

import random

score = [random.randint(0,100) for i in range(40)]

print score

num = len(score)

sum_score = sum(score)

ave_num = sum_score/num

less_ave = len([i for i in score if i<ave_num])

print "the average score is:%.1f" % ave_num

print "There are %d students less than average."%less_ave

sorted_score = sorted(score, reverse=True)

print sorted_score